Finding the Fourth Proportional to 371.53, 557.26 and 217.36
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Solution
The fourth proportional to 371.53, 557.26 and 217.36 is: 326.02
Step by Step Solution
- Step 1: Write the proportion equation
371.53 : 557.26 = 217.36 : x - Step 2: Convert to fraction form
371.53/557.26 = 217.36/x - Step 3: Cross multiply
371.53x = 557.26 × 217.36 - Step 4: Simplify right side
371.53x = 121,126.19 - Step 5: Solve for x
x = 121,126.19/371.53 - Step 6: Final answer
x = 326.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.